correctness vs suitability

correctness

noun
  • conformity to recognized standards 

  • freedom from error 

  • The state of an algorithm that correctly mirrors its specification. 

  • conformity to the truth or to fact 

suitability

noun
  • The quality of being suitable. 

How often have the words correctness and suitability occurred in a corpus of books? (source: Google Ngram Viewer )